Sayeda Hafsa Noor

Academic

Career

Verbatim text

STATCOM for voltage Regulation and Power Quality 

Electrical loads both generate and absorb reactive power. Since the transmitted load often varies 
considerably from one hour to the next, the reactive power balance in a grid varies as well. This can 
result in unacceptable variations in voltage, including voltage depression or even voltage collapse.  
The Static Synchronous Compensator (STATCOM) is a shunt device of the Flexible AC Transmission 
Systems (FACTS) continuously provides variable reactive power in response to voltage variations, 
supporting the stability of the grid. The STATCOM regulates voltage at its terminal by controlling 
the amount of reactive power injected into or absorbed from the power system. When system 
voltage is low, the STATCOM generates reactive power (STATCOM capacitive). When system 
voltage is high, it absorbs reactive power (STATCOM inductive). The variation of reactive power is 
performed by means of a Voltage-Sourced Converter (VSC) connected on the secondary side of a 
coupling transformer. The VSC uses forced-commutated power electronic devices to synthesize a 
voltage from a DC voltage source. 
Installing a STATCOM at one or more suitable points in a grid will increase power transfer capability 
by enhancing voltage stability and maintaining a smooth voltage profile under different network 
conditions. Its ability to perform active filtering is also very useful for improvements in power quality. 








Technology Used: 
MATLAB Simulink, STM Cube,  
Altium designer, TrueStudio 
Supervisor Name: 
Dr. Muhammad Jaffer 
Group Members:   
Sayeda Hafsa Noor (i16-0498)

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